--- /dev/null
+Do not install pkgconfig data files, pkg-config does not presently look at
+/usr/lib/llvm/.../pkgconfig and putting them in /usr/lib*/pkgconfig would
+cause collisions between slots.
+
+--- a/CMakeLists.txt
++++ b/CMakeLists.txt
+@@ -66,11 +66,3 @@
+ DESTINATION
+ ${CMAKE_INSTALL_PREFIX}/include/LLVMSPIRVLib
+ )
+-
+-configure_file(LLVMSPIRVLib.pc.in ${CMAKE_BINARY_DIR}/LLVMSPIRVLib.pc @ONLY)
+-install(
+- FILES
+- ${CMAKE_BINARY_DIR}/LLVMSPIRVLib.pc
+- DESTINATION
+- ${CMAKE_INSTALL_PREFIX}/lib${LLVM_LIBDIR_SUFFIX}/pkgconfig
+-)
--- /dev/null
+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE pkgmetadata SYSTEM "http://www.gentoo.org/dtd/metadata.dtd">
+<pkgmetadata>
+ <maintainer type="person">
+ <email>marecki@gentoo.org</email>
+ <name>Marek Szuba</name>
+ </maintainer>
+ <upstream>
+ <remote-id type="github">KhronosGroup/SPIRV-LLVM-Translator</remote-id>
+ </upstream>
+</pkgmetadata>
+
--- /dev/null
+# Copyright 1999-2019 Gentoo Authors
+# Distributed under the terms of the GNU General Public License v2
+
+EAPI=6
+
+inherit cmake-multilib flag-o-matic llvm eapi7-ver
+
+MY_PN="SPIRV-LLVM-Translator"
+MY_PV="$(ver_rs 3 -)"
+MY_P="${MY_PN}-${MY_PV}"
+
+DESCRIPTION="Bi-directional translator between SPIR-V and LLVM IR"
+HOMEPAGE="https://github.com/KhronosGroup/SPIRV-LLVM-Translator"
+SRC_URI="https://github.com/KhronosGroup/${MY_PN}/archive/v${MY_PV}.tar.gz -> ${P}.tar.gz"
+
+LICENSE="UoI-NCSA"
+SLOT="8"
+KEYWORDS="~amd64"
+IUSE="test"
+
+S="${WORKDIR}/${MY_P}"
+
+COMMON="sys-devel/llvm:8=[${MULTILIB_USEDEP}]"
+DEPEND="${COMMON}
+ test? ( dev-python/lit )"
+RDEPEND="${COMMON}"
+
+LLVM_MAX_SLOT=8
+
+PATCHES=(
+ "${FILESDIR}"/${PN}-8.0.0.1-no_pkgconfig_files.patch
+)
+
+src_prepare() {
+ append-flags -fPIC
+ cmake-utils_src_prepare
+}
+
+multilib_src_configure() {
+ local mycmakeargs=(
+ -DCMAKE_INSTALL_PREFIX="$(get_llvm_prefix)"
+ $(usex test "-DLLVM_INCLUDE_TESTS=ON" "")
+ )
+ cmake-utils_src_configure
+}
+
+multilib_src_compile() {
+ cmake-utils_src_compile llvm-spirv
+}
+
+multilib_src_install() {
+ cmake-utils_src_install
+ # CMake does not install the executable so do it by hand
+ if multilib_is_native_abi; then
+ exeinto "$(get_llvm_prefix)"/bin
+ doexe "${BUILD_DIR}"/tools/llvm-spirv/llvm-spirv
+ fi
+}
+
+multilib_src_test() {
+ # TODO: figure out why some tests fail on amd64 when ABI==x86
+ if multilib_is_native_abi; then
+ lit "${BUILD_DIR}/test" || die "Error running tests for ABI ${ABI}"
+ fi
+}